Added clarification

docs/modules/ROOT/pages/how-to/organizations.adoc

@@ -6,11 +6,9 @@ One of the basic features of the {product} Portal is to provide a centralized lo
 
 {product} allows namespaces and projects to belong to a particular {product} organization, as explained in the https://docs.appuio.cloud/user/how-to/manage-projects-and-namespaces.html[Manage Projects and Namespaces] documentation page. On the other hand, the https://control.vshn.net/[VSHN Control Panel] also provides customer management features. Finally, OpenShift also provides a notion of Groups. How are all of these concepts related?
 
-{product} Organizations aren't related to VSHN Control Panel customers nor to OpenShift groups. This makes them independent and cross-zones; this means that a {product} Organization spans across {product} zones automatically, allowing users to grant or deny access to projects from a central location.
+{product} Organizations are related to OpenShift Groups in the sense that there will be a group for each organization on each zone. This makes them independent and cross-zones; this means that a {product} Organization spans across {product} zones automatically, allowing users to grant or deny access to projects from a central location.
 
-== Finding your Username
-
-In order to be able to assign users to organizations, users need to know their username. Users not assigned to an organization are reminded to join one as soon as they log in to the {product} Portal for the first time.
+In order to be able to assign users to organizations, users need to xref:how-to/find-username.adoc[know their username]. Users not assigned to an organization are reminded to join one as soon as they log in to the {product} Portal for the first time.
 
 image::how-to/organizations/welcome.png[]